Unit 13
Focus on Global Warming
Teaching Objectives
1,To get students know the causes and effects of global
warming so as to improve their awareness of
environmental protection for survival,
2,To understand the purpose of writing and organization of
the text,
3,To reinforce some basic linguistic knowledge by doing
various types of exercises,
Discuss
1,List some examples of environmental pollution in daily
life,
2,What do you find in weather? What are the reasons for
weather change?
I,About the text
1,What is the purpose of this writing?
II,Structural Analysis
The first part (Para 1 to 2),Introduction
The author mentions how global warming has become a matter of
increasing public concern,
The second part (Para 3 to 8)
The author introduces the causes leading to the global warming,
The third part (Para 8 to 10)
The author brings out his suggestions—what to be done to slow
global warming,
The fourth part (Para 11),Conclusion
The author invites the participation of everybody to combat
global warming and to,make a real difference”,
Some terms
? Carbon dioxide
? Methane
? Nitrogen
? Nitrogen oxide
? ozone
III,Some difficult words,phrases and
sentences
1,With the possible exception of another world war,a giant
asteroid,or an incurable plague,global warming may be
the single largest threat to our planet,
Explain,Global warming will probably be the most serious
threat to our Earth,if we do not take into account some
other possible incidents,such as another world war,
collision of our Earth with some large orbiting planets,or
spread of incurable diseases,
III,Some difficult words,phrases and
sentences
2,As far as human health is concerned,those hit hardest will
probably be residents of poorer countries that do not have
the funds to fend against changes in climate,
Explain,In terms of human health,it is those who live in the
poorer countries that will suffer most,because they do not
have money to protect themselves against climate changes,
3,Vulnerable
1,His wife’s death left him feeling vulnerable and
depressed,
六神无主,十分消沉
2,A vulnerable point in NATO’s defense
4,mitigate
1,Mitigate the effects of inflation
2,Mitigate the severity of a punishment
5,Impact
1,The bomb exploded on impact,
撞击立即爆炸。
2,He speech made a tremendous impact,
3,An impacted wisdom tooth
阻生智齿
Affixes
1,Centigrade
Cent,100—centennial,centigram,centimeter,centiliter
2,Kilogram
Kilo,1,000—kilometer,kilowatt,kilohertz
3,Catalogue
Cata,downward,completely—cataract (fall)
4,Supervise
Super,above,over—supernatural,supervision,superficial
5,Surface
Sur,over—surpass,surroundings,survey (see),survive (life)
6,Submarine
Sub,below,under—submission,subdivide,subeditor,
subcontinent
Affixes
7,Asteroid,
Aster,star—disaster,astronaut,astrology,astronomy
8,Paleoclimate
Palaeo,ancient—paleography,paleontology
9,De,removal of—debug,decontrol
opposite or negative—decode
10,Thermal,of heat—thermonuclear,thermometer,
thermoelectric
V,Exercises,Translation
1,Global climate change may have been responsible for the
extinction of the dinosaur,
2,Patients with incurable illness often seek alternative
treatments such as homeopathy,
3,Economic theory predicts that a fall in the price of a
commodity will lead to an increase in consumption,
4,The congress is expected to take strong actions on the
problem of organized crime,
V,Exercises,Translation
5,The ever-present threat of unemployment makes workers
less willing to go on strike,
6,Elderly people may face some psychological problems that
result from their loss of independence,
7,The car industry,like most other industries,is feeling the
effects of the recession,
8,Your success at college partly depends on how well you can
adapt yourself to the new environment,
V,Exercises,Dictation
? It could be the title of a 21st century horror movie,
“Death by Global Warming”,Instead,it is a real-life
warning from an American university ecologist who
believes global warning may account for millions of human
deaths from disease,Right now the evidence of significant
global climate change is minimal,but there are already
noticeable increases in human diseases worldwide,Most of
the increase in disease is due to numerous environmental
factors,including infectious disease,pollution by chemicals
and biological wastes,and shortage of food,Global
warming will only make matters worse,
? Global climate change will result in a loss of available
food,Although there may be some benefits in crop
production from warmer climates,these beneficial effects
will not be so great,Crop losses from plant disease and
weeds will increase in a warmer climate,
Assignment
? Write a composition with the title,If There Were No Winter,